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Topic: Hydrogen bomb

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  Nuclear weapon - Encyclopedia.WorldSearch   (Site not responding. Last check: 2007-10-22)
In general, fission bombs are powered by using chemical explosives to compress a sub-critical amount of either uranium-235 or plutonium into a dense, super-critical mass, which is then subjected to a source of neutrons.
Weapons which have a fusion stage are also referred to as hydrogen bombs or H-bombs because their fusion fuel is often a form of hydrogen, or thermonuclear weapons because fusion reactions require extremely high temperatures for a chain reaction to occur.
Dirty bomb is now a term for a radiological weapon, a non-nuclear bomb that disperses radioactive material that was packed in with the bomb.
encyclopedia.worldsearch.com /hydrogen_bomb.htm   (5053 words)

 AllRefer.com - hydrogen bomb (Military Affairs (nonnaval)) - Encyclopedia
hydrogen bomb or H-bomb, weapon deriving a large portion of its energy from the nuclear fusion of hydrogen isotopes.
In an atomic bomb, uranium or plutonium is split into lighter elements that together weigh less than the original atoms, the remainder of the mass appearing as energy.
The theorized cobalt bomb is, on the contrary, a radioactively "dirty" bomb having a cobalt tamper.
reference.allrefer.com /encyclopedia/H/hydrogn-bm.html   (765 words)

 MSN Encarta - Hydrogen Bomb
Hydrogen Bomb, also known as H-bomb or thermonuclear bomb, nuclear weapon in which a thermonuclear fusion reaction takes place among heavy isotopes of hydrogen (either deuterium or tritium) to produce an explosion.
In the fusion reaction in a hydrogen bomb, two atoms of deuterium or tritium collide to produce a helium atom and extra neutrons.
The development of atomic and hydrogen bombs has had so great an impact on the world that historians draw a sharp distinction between the atomic age, or nuclear age, and all previous periods.
encarta.msn.com /encnet/refpages/RefArticle.aspx?refid=761557090   (669 words)

 Hydrogen   (Site not responding. Last check: 2007-10-22)
Hydrogen is the most abundant of all elements in the universe, and it is thought that the heavier elements were, and still are, being built from hydrogen and helium.
On earth, hydrogen occurs chiefly in combination with oxygen in water, but it is also present in organic matter such as living plants, petroleum, coal, etc. It is present as the free element in the atmosphere, but only to the extent of less than 1 ppm by volume.
Quite apart from isotopes, it has been shown that hydrogen gas under ordinary conditions is a mixture of two kinds of molecules, known as ortho- and para-hydrogen, which differ from one another by the spins of their electrons and nuclei.
www.scescape.net /~woods/elements/hydrogen.html   (914 words)

 Nuclear Weapons
This led to the term "hydrogen bomb" to describe the deuterium-tritium fusion bomb.
Analysis of the radioactive fallout from this bomb revealed it to be a fission-fusion-fission weapon, a "hydrogen bomb" with an outer sheath of natural uranium to increase the yield.
The bomb was triggered to explode at a height of 550 meters (1800 ft), a height calculated to cause the widest area of damage.
hyperphysics.phy-astr.gsu.edu /hbase/nucene/bomb.html   (934 words)

 Learn more about Nuclear weapon in the online encyclopedia.   (Site not responding. Last check: 2007-10-22)
Weapons which have a fusion stage are also referred to as hydrogen bombs or H-bombs because of their primary fuel, or thermonuclear weapons because fusion reactions require extremely high temperatures for a chain reaction to occur.
A final variant of the thermonuclear weapons is the enhanced radiation weapon, or neutron bomb which are small thermonuclear weapons in which the burst of neutrons generated by the fusion reaction is intentionally not absorbed inside the weapon, but allowed to escape.
The so-called dirty bomb was predicted in a 1943 article by Robert A. Heinlein titled "Solution Unsatisfactory" which caused him to be investigated by the FBI, concerned that there had been a breach of security on the Manhattan Project.
www.onlineencyclopedia.org /n/nu/nuclear_weapon.html   (3069 words)

 Nuclear weapon - Wikipedia, the free encyclopedia
Gravity bombs are designed to be dropped from planes, which requires that the weapon can withstand vibrations and changes in air temperature and pressure during the course of a flight.
The next generation of weapons were still so big and heavy that they could only be carried by bombers such as the B-52 Stratofortress and V bombers, but by the mid-1950s smaller weapons had been developed that could be carried and deployed by simple fighter-bombers.
The aftermath of the atomic bombing of Hiroshima.
en.wikipedia.org /wiki/Hydrogen_bomb   (2651 words)

 The Hydrogen Bomb In Bible Prophecy   (Site not responding. Last check: 2007-10-22)
The atom bomb works on the principle of splitting one complex atom apart and repeating this rapidly in a chain reaction until the explosion is made.
Hydrogen is perhaps the most common element in the universe, it constitutes the great gas clouds of interstellar space.
The hydrogen bomb produces heat hundreds of times hotter than the sun, and its vast fireball consumes an area much larger than that damaged by the blast, heat or radiation of the largest atom bomb.
www.churchoftrueisrael.com /comparet/comp29.html   (1592 words)

 The American Experience | Race for the Superbomb | The "George" Test
In the summer of 1950, while scientists at Los Alamos were feverishly working on calculations to see if the classical super, the initial design for the hydrogen bomb would work, the weapons laboratory was also preparing for a new series of nuclear tests in the Pacific.
The design was similar to ideas for a hydrogen bomb that atomic spy Klaus Fuchs had patented with mathematician John von Neumann in 1946.
He suggested putting the atomic bomb and hydrogen fuel in a shell which would reflect the neutrons.
www.pbs.org /wgbh/amex/bomb/peopleevents/pandeAMEX55.html   (549 words)

 Documentation and Diagrams of the Atomic Bomb
The detonating head (or heads, depending on whether a Uranium or Plutonium bomb is being used as a model) that is seated in the conventional explosive charge(s) is similar to the standard-issue blasting cap.
In a Uranium bomb, the neutron deflector serves as a safeguard to keep an accidental supercritical mass from occurring by bouncing the stray neutrons from the `bullet' counterpart of the Uranium mass away from the greater mass below it (and vice- versa).
The neutron flux of the bomb's payload is strong enough to short circuit the internal circuitry and cause an accidental or premature detonation.
www.nuc.berkeley.edu /neutronics/todd/nuc.bomb.html   (4355 words)

 hydrogen bomb
hydrogen bomb or H-bomb,weapon deriving a large portion of its energy from the nuclear fusion of
is, on the contrary, a radioactively “dirty” bomb having a cobalt tamper.
Edward Teller, 95, 'Father of Hydrogen Bomb,' Dies at Stanford University.
www.infoplease.com /ce6/history/A0824719.html   (752 words)

 BBC ON THIS DAY | 1 | 1954: US tests hydrogen bomb in Bikini
It is believed the hydrogen bomb was up to 1,000 times more powerful than the atomic bomb that destroyed Hiroshima.
A 10.4 megaton bomb was exploded on 1 November 1952 at Enewatak, west of Bikini.
Three weeks after Bikini bomb it emerged that a Japanese fishing boat, called Lucky Dragon, was within 80 miles (129 km) of the test zone at the time.
news.bbc.co.uk /onthisday/hi/dates/stories/march/1/newsid_2781000/2781419.stm   (388 words)

 Nuclear weapon   (Site not responding. Last check: 2007-10-22)
A nuclear weapon is a weapon that derives its energy from nuclear reactions and has enormous destructive power - a single nuclear weapon is capable of destroying a city.
Dirty bombs, similar to other enhanced fallout weapons of more technologically sophisticated design, are area denial weapons that can render an area unfit for habitation for years or decades after the detonation.
Portable bombs -- nuclear weapons that can be delivered in form of a suitcase bomb, or, for example, an ice cream truck.
www.sciencedaily.com /encyclopedia/nuclear_weapon   (3498 words)

 Chapter 3: Electrochemistry
The water breaks up into hydrogen and oxygen, which is trapped in the upper half of the chamber.
The first bomb I built was done entirely with the "lost wax casting" method used by artists, sculptors, and jewelers.
With the bomb, we eliminate all of the steps after the wax has been melted out of the mold, since our objective is to build a hollow in the plastic into which the carbon rods and spark gap protrude.
www.scitoys.com /scitoys/scitoys/echem/echem.html   (2260 words)

 The Hydrogen Bomb: The Basics | Nuclear Fusion | Science | atomicarchive.com
A fission bomb, called the primary, produces a flood of radiation including a large number of neutrons.
This radiation impinges on the thermonuclear portion of the bomb, known as the secondary.
In the extreme heat which exists in the bomb, the tritium fuses with the deuterium in the lithium deuteride.
www.atomicarchive.com /Fusion/Fusion2.shtml   (116 words)

 Reader's Companion to American History - -HYDROGEN BOMB   (Site not responding. Last check: 2007-10-22)
The Soviet Union tested a hydrogen bomb on August 12, 1953, and the British followed on May 15, 1957.
The hydrogen bomb is a thermonuclear weapon capable of devastating 150 square miles by blast, with searing heat effects and radioactive fallout for more than 800 square miles, depending on the size of the weapon.
The hydrogen bomb explosion is produced by nuclear fusion—the collision of neutrons with the nucleus of an unstable isotope of hydrogen, either deuterium or tritium, under high temperatures.
college.hmco.com /history/readerscomp/rcah/html/ah_044400_hydrogenbomb.htm   (347 words)

 CNN.com - Lost nuclear bomb possibly found - Sep 13, 2004
The hydrogen bomb was lost in the Atlantic Ocean in 1958 following a collision of a B-47 bomber and an F-86 fighter.
An Air Force investigation concluded in 2001 that the bomb is probably harmless if left where it is. It also said a recovery operation could set off the conventional explosives in the bomb that would put the recovery crew at risk and do serious environmental damage.
The Air Force insists the bomb was being used for practice and did not contain the plutonium trigger needed for a nuclear explosion.
www.cnn.com /2004/US/09/13/lost.bomb   (912 words)

 The American Experience | Race for the Superbomb | Edward Teller, (1908 - )
Described by one Nobel Prize winner in physics as "one of the most thoughtful statesmen of science," and by another as "a danger to all that's important," Teller was recognized by most of his colleagues as being one of the most imaginative and creative physicists alive.
The man who would one day be known as the father of the hydrogen bomb in the U.S. was born into a Jewish family on January 15, 1908 in Budapest, Hungary.
When his initial concept for the bomb didn't appear to work, he insisted that the problem was caused by a shortage of theoreticians at Los Alamos and a lack of imagination.
www.pbs.org /wgbh/amex/bomb/peopleevents/pandeAMEX73.html   (965 words)

 The Never-Tested Doomsday Bomb
Many might remember the Neutron bomb which, when exploding, leaves buildings and roads intact while showering life on earth with lethal doses of neutron radiation.
The idea of the cobalt bomb originated with Leo Szilard who publicized it in Feb. 1950, not as a serious proposal for weapon, but to point out that it would soon be possible in principle to build a weapon that could kill everybody on earth.
No cobalt or other salted bomb has ever been atmospherically tested, and as far as is publicly known none have ever been built.
www.rense.com /general40/dooms.htm   (1324 words)

 CNN Cold War - The Atomic Age: From fission to fallout
For such a fusion reaction to succeed, the fission explosion of the atomic bomb must generate temperatures equal to -- or greater than -- those found at the sun's core.
The atomic bomb dropped on Hiroshima -- using less than 130 pounds of uranium -- produced a 15 kiloton blast.
Hydrogen, or fusion, bombs have delivered yields of up to nearly 60 megatons -- although most current nuclear devices have yields of less than 1 megaton.
www.cnn.com /SPECIALS/cold.war/experience/the.bomb/history.science   (785 words)

 Hydrogen bomb   (Site not responding. Last check: 2007-10-22)
The Hydrogen Bomb was formed by a process called fusion.
An atomic fission bomb is used as a trigger for this reaction.
This means that the bomb that destroyed Hiroshima and Nagasaki in 1945 is not nearly the most powerful nuclear weapon made.
web1.caryacademy.org /chemistry/rushin/StudentProjects/CompoundWebSites/2000/Hydrogen/hydrogen_bomb.htm   (180 words)

 The Cold War Museum - H-Bomb Development Summary
Arguing that the only way to regain nuclear superiority would be the creation of a crash program aimed at the development of a new type of weapon -- a hydrogen bomb -- Strauss began an aggressive campaign to convince Truman of the merits of his proposal.
Consisting of scientists and directed by Manhattan Project leader J. Robert Oppenheimer, the GAC discussed the merits and potential dangers of developing hydrogen bombs in the United States.
Aware that key members of the AEC supported an increase in the nuclear arsenal that included hydrogen bombs, Truman referred the matter to a committee of three he created to offer him further advice: Lilienthal, Secretary of State Dean Acheson, and Secretary of Defense Louis Johnson.
www.coldwar.org /articles/40s/h_bomb.html   (748 words)

 Permissive Action Links   (Site not responding. Last check: 2007-10-22)
An early attempt by India to test their bomb is rumored to have failed because of an electronics malfunction.
For example, in modern bombs the pit is "levitated" inside the ball of high explosives [H88] [R95].
Bombs get their high voltage detonation current from a bank of capacitors; these in turn are charged from batteries.
www.research.att.com /~smb/nsam-160/pal.html   (6966 words)

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